Date, C J. An introduction to database systems / C J Date,A Kanna and S Swamynathan. - 8th ed / . - Delhi : Pearson education , 2008. - xxiii,931p.Includes index : ills.,figs ; 24cm . NULL ISBN: Rs. 399.00 (Pb) Subjects--Index Terms: DATABASE Dewey Class. No.: 005.74 / DAT/I